Nitroglycerin explosive.



' liability to UNITED STATE PATENT FFICE,

MAX BIELEFELDT, on BERLIN, GERMANY.

' NITIRGGLYCERIN EXPLOSIVE,

Specification of Letters Patent.

' Patented Sept. 19, 19.05.

A u 5 March 21, 1905. Serial No. 2 51.324.

To (all whom it may concern.-

Be it known that I, MAX BIELEFELDT, a su b-' ject of the German Emperor,residing at Berlin, Germany. have invented certain new and usefulImprovements Relatingto Nitroglycerin Explosives, of which the followingis a specification.

- tained either by adding to the explosives pure dinitro-chlorhydrin orby using for the mannfacture of explosives nitroglycerin containingdinitro-chlorhydrin.

In comparison with the additionof dinitroglycerin to the explosives forthe same purpose the addition of dinitro-chlorhydrin ofiers thefollowing advantages: Dinitro-chlorhy drinmay be produced easily, freefrom danger. and efiiciently as regards the quantity obtainable inpractice in comparison with the theoretical yield; it does not lower thetemperature at which the explosion takes place and is not liable todecomposition; it prevente the freezing of dynamite better than anyother substance hithertovused for this; purpose-for instance,dinitro-glycerin-and it accelerates the gelatinizing process of theexplosives. 2 What I claim is- 1. A nitroglycerin explosivecontaining-'- dinitro-monochlorhydrin, to protect the'explosive from thedanger of, freezing, substani tially as described.

2, A nitroglycerin explosive containing dinitro-monochlorhydrin, betweenfifteen and twenty-five per cent. ofthe weight of nitroglycerincontained' in the explosive, substantially as described. I

nesses. v ,MAX IBIELEFELDT.

Witnesses FRDR. LUTZE, A, KREF'l.

. 45 In testimony whereof I have hereuntoset my hand in presence of twosubscribing Wlt'

